Reoccurances!

What motifs, themes and/or ideas can you find that occure and then reoccure in literature? From your first readings to now what can you find that parallels? And why? can you find themes, allusions or certain types of irony that are prominent in liturature from similar periods of history? Are there poetic styles that are more prominent in the romantic era that have contintued of died since then? What literary styles run into a continuum from then to now? If you find any, share them!